"# \u57fa\u4e8emnModbus\u534f\u8bae\u6808\u7684Modbus\u5f00\u53d1\u6559\u7a0b\uff08\u5b8c\u6574\u7248\uff09\n\n> 2024-04-25 | 2024-04-25\n> 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PDU\u8be6\u7ec6\u8bf4\u660e\u4e86\u8d77\u59cb\u5730\u5740\uff0c\u5373\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u7ebf\u5708\u5730\u5740\u548c\u7ebf\u5708\u7f16\u53f7\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u7ebf\u5708\u3002\u56e0\u6b64\u5bfb\u5740\u7ebf\u5708 1-16 \u4e3a 0-15\u3002\n\n\u6839\u636e\u6570\u636e\u57df\u7684\u6bcf\u4e2a\u6bd4\u7279\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u7ebf\u5708\u5206\u6210\u4e3a\u4e00\u4e2a\u7ebf\u5708\u3002\u6307\u793a\u72b6\u6001\u4e3a 1= ON \u548c 0= OFF\u3002\u7b2c\u4e00\u4e2a\u6570\u636e\u5b57\u8282\u7684 LSB\uff08\u6700\u4f4e\u6709\u6548\u4f4d\uff09\u5305\u62ec\u5728\u8be2\u95ee\u4e2d\u5bfb\u5740\u7684\u8f93\u51fa\u3002\u5176\u5b83\u7ebf\u5708\u4f9d\u6b21\u7c7b\u63a8\uff0c\u4e00\u76f4\u5230\u8fd9\u4e2a\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\u4e3a\u6b62\uff0c\u5e76\u5728\u540e\u7eed\u5b57\u8282\u4e2d\u4ece\u4f4e\u4f4d\u5230\u9ad8\u4f4d\u7684\u987a\u5e8f\u3002\n\n\u5982\u679c\u8fd4\u56de\u7684\u8f93\u51fa\u6570\u91cf\u4e0d\u662f\u516b\u7684\u500d\u6570\uff0c\u5c06\u7528\u96f6\u586b\u5145\u6700\u540e\u6570\u636e\u5b57\u8282\u4e2d\u7684\u5269\u4f59\u6bd4\u7279\uff08\u4e00\u76f4\u5230\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\uff09\u3002\u5b57\u8282\u6570\u91cf\u57df\u8bf4\u660e\u4e86\u6570\u636e\u7684\u5b8c\u6574\u5b57\u8282\u6570\u3002\u5177\u4f53\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091558245.png)\n\n\uff082\uff09\u529f\u80fd\u78010x02\uff1a\u8bfb\u79bb\u6563\u91cf\u8f93\u5165\n\n\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6\u79bb\u6563\u91cf\u8f93\u5165\u7684 1 \u81f3 2000 \u8fde\u7eed\u72b6\u6001\u3002\u8bf7\u6c42 PDU \u8be6\u7ec6\u8bf4\u660e\u4e86\u8d77\u59cb\u5730\u5740\uff0c\u5373\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u8f93\u5165\u5730\u5740\u548c\u8f93\u5165\u7f16\u53f7\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u8f93\u5165\u3002\u56e0\u6b64\u5bfb\u5740\u8f93\u5165 1-16 \u4e3a 0-15\u3002\n\n\u6839\u636e\u6570\u636e\u57df\u7684\u6bcf\u4e2a\u6bd4\u7279\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u79bb\u6563\u91cf\u8f93\u5165\u5206\u6210\u4e3a\u4e00\u4e2a\u8f93\u5165\u3002\u6307\u793a\u72b6\u6001\u4e3a1=ON \u548c0=OFF\u3002\u7b2c\u4e00\u4e2a\u6570\u636e\u5b57\u8282\u7684 LSB\uff08\u6700\u4f4e\u6709\u6548\u4f4d\uff09\u5305\u62ec\u5728\u8be2\u95ee\u4e2d\u5bfb\u5740\u7684\u8f93\u5165\u3002\u5176\u5b83\u8f93\u5165\u4f9d\u6b21\u7c7b\u63a8\uff0c\u4e00\u76f4\u5230\u8fd9\u4e2a\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\u4e3a\u6b62\uff0c\u5e76\u5728\u540e\u7eed\u5b57\u8282\u4e2d\u4ece\u4f4e\u4f4d\u5230\u9ad8\u4f4d\u7684\u987a\u5e8f\u3002\n\n\u5982\u679c\u8fd4\u56de\u7684\u8f93\u5165\u6570\u91cf\u4e0d\u662f\u516b\u7684\u500d\u6570\uff0c\u5c06\u7528\u96f6\u586b\u5145\u6700\u540e\u6570\u636e\u5b57\u8282\u4e2d\u7684\u5269\u4f59\u6bd4\u7279\uff08\u4e00\u76f4\u5230\u5b57\u8282\u7684\u9ad8\u4f4d\u7aef\uff09\u3002\u5b57\u8282\u6570\u91cf\u57df\u8bf4\u660e\u4e86\u6570\u636e\u7684\u5b8c\u6574\u5b57\u8282\u6570\u3002\u5177\u4f53\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091559122.png)\n\n\u4e8b\u5b9e\u4e0a\uff0c\u529f\u80fd\u78010x01\u548c0x02\u7684\u6570\u636e\u683c\u5f0f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u64cd\u4f5c\u65b9\u5f0f\u4e5f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u6240\u4e0d\u540c\u53ea\u662f\u64cd\u4f5c\u7684\u5bf9\u8c61\u4e0d\u540c\u3002\n\n\uff083\uff09\u529f\u80fd\u78010x03\uff1a\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\n\n\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u8fde\u7eed\u5757\u7684\u5185\u5bb9\u3002\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u8d77\u59cb\u5bc4\u5b58\u5668\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6570\u91cf\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u5bc4\u5b58\u5668\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u5bc4\u5b58\u5668 1-16 \u4e3a 0-15\u3002\n\n\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u5bc4\u5b58\u5668\u6570\u636e\u5206\u6210\u6bcf\u4e2a\u5bc4\u5b58\u5668\u6709\u4e24\u5b57\u8282\uff0c\u5728\u6bcf\u4e2a\u5b57\u8282\u4e2d\u76f4\u63a5\u5730\u8c03\u6574\u4e8c\u8fdb\u5236\u5185\u5bb9\u3002\n\n\u5bf9\u4e8e\u6bcf\u4e2a\u5bc4\u5b58\u5668\uff0c\u7b2c\u4e00\u4e2a\u5b57\u8282\u5305\u62ec\u9ad8\u4f4d\u6bd4\u7279\uff0c\u5e76\u4e14\u7b2c\u4e8c\u4e2a\u5b57\u8282\u5305\u62ec\u4f4e\u4f4d\u6bd4\u7279\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091600193.png)\n\n\u54cd\u5e94\u4fe1\u606f\u7684\u957f\u5ea6\u4e0e\u5177\u4f53\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u6709\u5173\u3002\n\n\uff084\uff09\u529f\u80fd\u78010x04\uff1a\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\n\n\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u8bfb\u53d6 1 \u81f3\u5927\u7ea6 125 \u7684\u8fde\u7eed\u8f93\u5165\u5bc4\u5b58\u5668\u3002\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u8d77\u59cb\u5730\u5740\u548c\u5bc4\u5b58\u5668\u6570\u91cf\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u5bc4\u5b58\u5668\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u8f93\u5165\u5bc4\u5b58\u5668 1-16 \u4e3a 0-15\u3002\n\n\u5c06\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u5bc4\u5b58\u5668\u6570\u636e\u5206\u6210\u6bcf\u4e2a\u5bc4\u5b58\u5668\u4e3a\u4e24\u5b57\u8282\uff0c\u5728\u6bcf\u4e2a\u5b57\u8282\u4e2d\u76f4\u63a5\u5730\u8c03\u6574\u4e8c\u8fdb\u5236\u5185\u5bb9\u3002\n\n\u5bf9\u4e8e\u6bcf\u4e2a\u5bc4\u5b58\u5668\uff0c\u7b2c\u4e00\u4e2a\u5b57\u8282\u5305\u62ec\u9ad8\u4f4d\u6bd4\u7279\uff0c\u5e76\u4e14\u7b2c\u4e8c\u4e2a\u5b57\u8282\u5305\u62ec\u4f4e\u4f4d\u6bd4\u7279\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091600851.png)\n\n\u4e8b\u5b9e\u4e0a\uff0c\u529f\u80fd\u78010x03\u548c0x04\u7684\u6570\u636e\u683c\u5f0f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u64cd\u4f5c\u65b9\u5f0f\u4e5f\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u6240\u4e0d\u540c\u53ea\u662f\u64cd\u4f5c\u7684\u5bf9\u8c61\u4e0d\u540c\u3002\u54cd\u5e94\u4fe1\u606f\u7684\u957f\u5ea6\u4e0e\u5177\u4f53\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u6709\u5173\u3002\n\n\uff085\uff09\u529f\u80fd\u78010x05\uff1a\u5199\u5355\u4e2a\u7ebf\u5708\n\n\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e0a\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5199\u5355\u4e2a\u8f93\u51fa\u4e3a ON \u6216 OFF\u3002\n\n\u8bf7\u6c42\u6570\u636e\u57df\u4e2d\u7684\u5e38\u91cf\u8bf4\u660e\u8bf7\u6c42\u7684ON\/OFF\u72b6\u6001\u3002\u5341\u516d\u8fdb\u5236\u503c0xFF00\u8bf7\u6c42\u8f93\u51fa\u4e3a ON\u3002\u5341\u516d\u8fdb\u5236\u503c0x0000 \u8bf7\u6c42\u8f93\u51fa\u4e3aOFF\u3002\u5176\u5b83\u6240\u6709\u503c\u5747\u662f\u975e\u6cd5\u7684\uff0c\u5e76\u4e14\u5bf9\u8f93\u51fa\u4e0d\u8d77\u4f5c\u7528\u3002\n\n\u8bf7\u6c42 PDU \u8bf4\u660e\u4e86\u5f3a\u5236\u7684\u7ebf\u5708\u5730\u5740\u3002\u4ece\u96f6\u5f00\u59cb\u5bfb\u5740\u7ebf\u5708\u3002\u56e0\u6b64\uff0c\u5bfb\u5740\u7ebf\u57081\u4e3a0\u3002\u7ebf\u5708\u503c\u57df\u7684\u5e38\u91cf\u8bf4\u660e\u8bf7\u6c42\u7684 ON\/OFF \u72b6\u6001\u3002\u5341\u516d\u8fdb\u5236\u503c 0XFF00 \u8bf7\u6c42\u7ebf\u5708\u4e3a ON\u3002\u5341\u516d\u8fdb\u5236\u503c 0X0000 \u8bf7\u6c42\u7ebf\u5708\u4e3aOFF\u3002\u5176\u5b83\u6240\u6709\u503c\u5747\u4e3a\u975e\u6cd5\u7684\uff0c\u5e76\u4e14\u5bf9\u7ebf\u5708\u4e0d\u8d77\u4f5c\u7528\u3002\n\n\u6b63\u5e38\u54cd\u5e94\u662f\u8bf7\u6c42\u7684\u5e94\u7b54\uff0c\u5728\u5199\u5165\u7ebf\u5708\u72b6\u6001\u4e4b\u540e\u8fd4\u56de\u8fd9\u4e2a\u6b63\u5e38\u54cd\u5e94\u3002\u5177\u4f53\u7684\u683c\u5f0f\u4e3e\u4f8b\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091601386.png)\n\n\uff086\uff09\u529f\u80fd\u78010x06\uff1a\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\n\n\u5728\u4e00\u4e2a\u8fdc\u7a0b\u8bbe\u5907\u4e2d\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7801\u5199\u5355\u4e2a\u4fdd\u6301\u5bc4\u5b58\u5668\u3002\n\n\u8bf7\u6c42 PDU 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\u201c0\u201d\uff0c\u8fd9\u662f\u4e0e\u5199\u5355\u4e2a\u7ebf\u5708\u7684\u533a\u522b\u3002\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091717524.png)\n\n\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u8f93\u51fa\u6570\u91cf+\u5b57\u8282\u6570+\u8f93\u51fa\u503c\u3002\u547d\u4ee4\u62a5\u6587\u4e0e\u524d\u9762\u7684\u51e0\u79cd\u8bfb\u5199\u64cd\u4f5c\u6709\u8f83\u5927\u7684\u533a\u522b\uff0c\u5fc5\u987b\u8981\u5355\u72ec\u5904\u7406\u3002\n\n**\uff08****8****\uff09\u5199\u591a\u4e2a\u5bc4\u5b58\u5668****0x10**\n\n\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u5c31\u662f\u5bf9\u591a\u4e2a\u53ef\u8bfb\u5199\u5bc4\u5b58\u5668\u540c\u65f6\u8fdb\u884c\u64cd\u4f5c\uff0c\u6570\u636e\u62a5\u6587\u7684\u683c\u5f0f\u4e0e\u5199\u591a\u4e2a\u7ebf\u5708\u662f\u4e00\u81f4\u7684\u3002\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091718606.png)\n\n\u5176\u4e0b\u53d1\u7684\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1a\u57df\u540d+\u529f\u80fd\u7801+\u8d77\u59cb\u5730\u5740+\u8f93\u51fa\u6570\u91cf+\u5b57\u8282\u6570+\u8f93\u51fa\u503c\u3002\n\n**3****\u3001\u57fa\u672c\u6570\u636e\u5355\u5143\u7684\u7f16\u7a0b**\n\n\u7ecf\u8fc7\u4e0a\u9762\u7684\u5206\u6790\uff0c\u6211\u4eec\u53d1\u73b0\u4e0d\u8bba\u662f\u5728\u4ec0\u4e48\u6837\u7684\u7269\u7406\u94fe\u8def\u4e0a\u5b9e\u73b0\u7684\u5e94\u7528\u6570\u636e\uff0c\u5668\u57fa\u672c\u6570\u636e\u6bb5\u90fd\u662f\u76f8\u540c\u7684\u3002\u5176\u5b9e\u52a0\u4e0a\u57df\u540d\u6bb5\u7684\u683c\u5f0f\u4e5f\u662f\u76f8\u540c\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u5c06\n\n\u57df\u540d+PDU\u4e00\u8d77\u4f5c\u4e3a\u6700\u57fa\u672c\u7684\u6570\u636e\u5355\u5143\u6765\u5b9e\u73b0\u3002\n\n\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u5355\u5143\u7684\u5b9e\u73b0\u7531\u5206\u4e3a2\u79cd\u60c5\u51b5\uff1a\u4e00\u662f\u4f5c\u4e3a\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u65f6\uff0c\u5bf9\u4ece\u7ad9\uff08\u670d\u52a1\u5668\uff09\u7684\u4e0b\u53d1\u547d\u4ee4\uff1b\u4e8c\u662f\u4f5c\u4e3a\u4ece\u7ad9\uff08\u670d\u52a1\u5668\uff09\u65f6\uff0c\u5bf9\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u547d\u4ee4\u7684\u54cd\u5e94\u3002\u6240\u4ee5\u6211\u4eec\u5c06\u8fd9\u4e24\u79cd\u60c5\u51b5\u5206\u522b\u5c01\u88c5\u4e3a2\u4e2a\u57fa\u7840\u51fd\u6570\uff1a\n\n\uff081\uff09\u3001\u4f5c\u4e3aRTU\u4e3b\u7ad9\uff08TCP\u5ba2\u6237\u7aef\uff09\u65f6\uff0c\u751f\u6210\u8bfb\u5199RTU\u4ece\u7ad9\uff08TCP\u670d\u52a1\u5668\uff09\u5bf9\u8c61\u7684\u547d\u4ee4\uff1a\n\nuint16_t GenerateReadWriteCommand(ObjAccessInfo objInfo,bool *statusList,uint16_t *registerList,uint8_t *commandBytes)\n\n\u53c2\u6570\u5206\u522b\u662fPDU\u5355\u5143\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5199\u5bf9\u8c61\u7684\u5bf9\u5e94\u6570\u636e\uff0c\u4ee5\u53ca\u751f\u6210\u7684\u547d\u4ee4\u5b57\u8282\u3002\u800c\u8fd4\u56de\u503c\u5219\u662f\u751f\u6210\u7684\u547d\u4ee4\u7684\u957f\u5ea6\u3002\n\n\uff082\uff09\u3001\u4f5c\u4e3a\u4ece\u7ad9(\u670d\u52a1\u5668)\u65f6\uff0c\u751f\u6210\u4e3b\u7ad9\u8bfb\u8bbf\u95ee\u7684\u54cd\u5e94\u3002\u5bf9\u4e8e\u54cd\u5e94\u56e0\u4e3a\u5199\u64cd\u4f5c\u7684\u54cd\u5e94\u5b9e\u9645\u4e0a\u5c31\u662f\u590d\u5236\u4e3b\u7ad9\uff08\u5ba2\u6237\u7aef\uff09\u7684\u547d\u4ee4\u7684\u4e00\u90e8\u5206\uff0c\u6240\u4ee5\u6211\u4eec\u5b9e\u9645\u9700\u8981\u751f\u6210\u7684\u54cd\u5e94\u662f\u5305\u62ec0x01\u30010x02\u30010x03\u30010x04\u529f\u80fd\u7801\u7684\u60c5\u5f62\u3002\n\nuint16_t GenerateMasterAccessRespond(uint8_t *receivedMessage,bool *statusList,uint16_t *registerList,uint8_t *respondBytes)\n\n\u53c2\u6570\u5206\u522b\u662f\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u8bfb\u53d6\u7684\u5bf9\u8c61\u7684\u6570\u636e\uff0c\u4ee5\u53ca\u8fd4\u56de\u7684\u54cd\u5e94\u6d88\u606f\u3002\u800c\u8fd4\u56de\u503c\u5219\u662f\u8fd4\u56de\u7684\u54cd\u5e94\u6d88\u606f\u7684\u957f\u5ea6\u3002\n\n**4****\u3001****RTU****\u5e94\u7528\u6570\u636e\u5355\u5143\u7684\u7f16\u7a0b**\n\n\u5bf9\u4e8eRTU\u5e94\u7528\u6570\u636e\u5355\u5143\u6765\u8bf4\uff0c\u5176\u62a5\u6587\u683c\u5f0f\u5c31\u662f\uff1a\u201c\u57df\u540d+PDU+CRC\u201d\uff0c\u800c\u57df\u540d+PDU\u6211\u4eec\u5728\u4e0a\u4e00\u8282\u4e2d\u5df2\u7ecf\u5b9e\u73b0\u4e86\uff0c\u6240\u4ee5\u8981\u5b9e\u73b0RTU\u7684\u6570\u636e\u5355\u5143\u5b9e\u9645\u4e0a\u6211\u4eec\u53ea\u9700\u8981\u52a0\u4e0aCRC\u6821\u9a8c\u5c31\u5df2\u7ecf\u5b8c\u6210\u4e86\u3002\n\n\u5bf9\u4e8eRTU\u6570\u636e\u5355\u5143\u7684\u5b9e\u73b0\u7531\u5206\u4e3a2\u79cd\u60c5\u51b5\uff1a\u4e00\u662f\u4f5c\u4e3a\u4e3b\u7ad9\u65f6\uff0c\u5bf9\u4ece\u7ad9\u7684\u4e0b\u53d1\u547d\u4ee4\uff1b\u4e8c\u662f\u4f5c\u4e3a\u4ece\u7ad9\u65f6\uff0c\u5bf9\u4e3b\u7ad9\u547d\u4ee4\u7684\u54cd\u5e94\u3002\u6240\u4ee5\u6211\u4eec\u5c06\u8fd9\u4e24\u79cd\u60c5\u51b5\u5206\u522b\u5c01\u88c5\u4e3a2\u4e2a\u57fa\u7840\u51fd\u6570\uff1a\n\n\uff081\uff09\u3001\u4f5c\u4e3aRTU\u4e3b\u7ad9\u65f6\uff0c\u751f\u6210\u8bfb\u5199RTU\u4ece\u7ad9\u5bf9\u8c61\u7684\u547d\u4ee4\uff1a\n\n\/*\u751f\u6210\u8bfb\u5199\u4ece\u7ad9\u6570\u636e\u5bf9\u8c61\u7684\u547d\u4ee4,\u547d\u4ee4\u957f\u5ea6\u5305\u62ec2\u4e2a\u6821\u9a8c\u5b57\u8282*\/\n\nuint16_t SyntheticReadWriteSlaveCommand(ObjAccessInfo slaveInfo,bool *statusList,uint16_t *registerList,uint8_t *commandBytes)\n\n\u53c2\u6570\u5206\u522b\u662f\u4ece\u7ad9\u57fa\u672c\u4fe1\u606f\uff0c\u4e0b\u53d1\u7684\u6570\u636e\u5217\u8868\uff0c\u4ee5\u53ca\u6700\u7ec8\u751f\u6210\u7684\u547d\u4ee4\u6570\u7ec4\u3002\u8fd4\u56de\u503c\u662f\u662f\u547d\u4ee4\u7684\u957f\u5ea6\u3002\n\n\uff082\uff09\u3001\u4f5c\u4e3a\u4ece\u7ad9\u65f6\uff0c\u751f\u6210\u4e3b\u7ad9\u8bfb\u8bbf\u95ee\u7684\u54cd\u5e94\uff1a\n\n\/*\u751f\u6210\u4ece\u7ad9\u5e94\u7b54\u4e3b\u7ad9\u7684\u54cd\u5e94*\/\n\nuint16_t SyntheticSlaveAccessRespond(uint8_t *receivedMessage,bool *statusList,uint16_t *registerList,uint8_t *respondBytes)\n\n\u53c2\u6570\u5206\u522b\u662f\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u8fd4\u56de\u7684\u6570\u636e\u5217\u8868\uff0c\u751f\u6210\u7684\u54cd\u5e94\u4fe1\u606f\u5217\u8868\u3002\u8fd4\u56de\u503c\u662f\u54cd\u5e94\u4fe1\u606f\u5217\u8868\u7684\u957f\u5ea6\u3002\n\n**5****\u3001****TCP****\u5e94\u7528\u6570\u636e\u5355\u5143\u7684\u7f16\u7a0b**\n\n\u800c\u5bf9\u4e8eTCP\u5e94\u7528\u6570\u636e\u5355\u5143\u6765\u8bf4\uff0c\u4e0eRTU\u7c7b\u5f0f\uff0c\u8d77\u62a5\u6587\u683c\u5f0f\u662f\uff1a\u201cMBAP\u5934+PDU\u201d\uff0c\u800cPDU\u5355\u5143\u5c31\u662f\u524d\u9762\u5b9a\u4e49\u7684\uff0c\u6240\u4ee5\u53ea\u9700\u8981\u52a0\u4e0aMBAP\u5934\u90e8\u5c31\u53ef\u4ee5\u4e86\uff0c\u4e8b\u5b9e\u4e0aMBAP\u5934\u90e8\u7684\u5b9e\u73b0\u683c\u5f0f\u662f\u56fa\u5b9a\u7684\u3002\n\n\u5bf9\u4e8eTCP\u5e94\u7528\u6570\u636e\u5355\u5143\u7684\u5b9e\u73b0\u540c\u6837\u5206\u4e3a2\u4e2d\u60c5\u51b5\uff1a\u4e00\u662f\u4f5c\u4e3a\u5ba2\u6237\u7aef\u65f6\uff0c\u5bf9\u670d\u52a1\u5668\u7684\u4e0b\u53d1\u547d\u4ee4\uff1b\u4e8c\u662f\u4f5c\u4e3a\u670d\u52a1\u5668\u65f6\uff0c\u5bf9\u5ba2\u6237\u7aef\u547d\u4ee4\u7684\u54cd\u5e94\u3002\u6240\u4ee5\u6211\u4eec\u5c06\u8fd9\u4e24\u79cd\u60c5\u51b5\u5206\u522b\u5c01\u88c5\u4e3a2\u4e2a\u57fa\u7840\u51fd\u6570\uff1a\n\n\uff081\uff09\u3001\u4f5c\u4e3aTCP\u5ba2\u6237\u7aef\u65f6\uff0c\u751f\u6210\u8bfb\u5199TCP\u670d\u52a1\u5668\u5bf9\u8c61\u7684\u547d\u4ee4\uff1a\n\n\/*\u751f\u6210\u8bfb\u5199\u670d\u52a1\u5668\u5bf9\u8c61\u7684\u547d\u4ee4*\/\n\nuint16_t SyntheticReadWriteTCPServerCommand(ObjAccessInfo objInfo,bool *statusList,uint16_t *registerList,uint8_t *commandBytes)\n\n\uff082\uff09\u3001\u4f5c\u4e3a(\u670d\u52a1\u5668\u65f6\uff0c\u751f\u6210\u5ba2\u6237\u7aef\u8bfb\u5199\u8bbf\u95ee\u7684\u54cd\u5e94\uff1a\n\n\/*\u5408\u6210\u5bf9\u670d\u52a1\u5668\u8bbf\u95ee\u7684\u54cd\u5e94,\u8fd4\u56de\u503c\u4e3a\u547d\u4ee4\u957f\u5ea6*\/\n\nuint16_t SyntheticServerAccessRespond(uint8_t *receivedMessage,bool *statusList,uint16_t *registerList,uint8_t *respondBytes)\n\n**6****\u3001\u7ed3\u675f\u8bed**\n\n\u5176\u5b9e\u5230\u8fd9\u91cc\u6211\u4eec\u5bf9Modbus\u57fa\u672c\u534f\u8bae\u5df2\u7ecf\u57fa\u672c\u5b9e\u73b0\uff0c\u751a\u81f3\u4f7f\u7528\u8fd9\u4e9b\u57fa\u672c\u64cd\u4f5c\u4e5f\u80fd\u5b9e\u73b0Modbus\u7684\u901a\u8baf\u3002\u4e8b\u5b9e\u4e0a\u5f88\u591a\u4eba\u5728\u5e94\u7528\u5199\u7684Modbus\u901a\u8baf\u534f\u8bae\u6bd4\u8fd9\u8fd8\u8981\u7b80\u5355\uff0c\u4e5f\u80fd\u5b9e\u73b0\u90e8\u5206\u7684Modbus\u901a\u8baf\u529f\u80fd\u3002\u5f53\u7136\u8fd9\u4e0d\u662f\u6211\u4eec\u7684\u76ee\u6807\uff0c\u5426\u5219\u5c31\u4e0d\u9700\u8981\u4e13\u95e8\u5f00\u53d1\u5e93\u4e86\uff0c\u6211\u4eec\u8981\u8fdb\u4e00\u6b65\u5c01\u88c5\uff0c\u8ba9\u5176\u66f4\u901a\u7528\u4e5f\u66f4\u6613\u7528\u624d\u662f\u6211\u4eec\u9700\u8981\u7684\u3002\n\n\u5728\u5b8c\u6210\u4e86\u524d\u9762\u7684\u5de5\u4f5c\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6709\u9488\u5bf9\u6027\u7684\u5e94\u7528\u4e86\uff0c\u9996\u5148\u6211\u4eec\u6765\u5b9e\u73b0Modbus TCP\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\u3002\u5f53\u7136\u6211\u4eec\u4e0d\u662f\u505a\u5177\u4f53\u7684\u5e94\u7528\uff0c\u800c\u662f\u5bf9Modbus TCP\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\u8fdb\u884c\u5c01\u88c5\u4ee5\u4f9b\u6709\u9700\u8981\u65f6\u8c03\u7528\u3002\n\n\u8fd9\u91cc\u6211\u4eec\u4e0d\u6d89\u53caTCP\u7684\u534f\u8bae\uff0c\u8fd9\u90e8\u5206\u4e0eModbus\u6ca1\u6709\u5fc5\u7136\u8054\u7cfb\uff0c\u6211\u4eec\u53ea\u662f\u5728\u5176\u5e94\u7528\u5c42\u8fd0\u884cModbus\u534f\u8bae\u800c\u5df2\u3002\n\n\u5bf9\u4e8eModbus TCP\u7684\u670d\u52a1\u5668\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u51e0\u4e2a\u529f\u80fd\uff1a\u9996\u5148\u662f\u5bf9\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u547d\u4ee4\u8fdb\u884c\u89e3\u6790\uff0c\u6211\u4eec\u53ea\u5b9e\u73b0\u524d\u9762\u63d0\u5230\u76848\u4e2d\u5e38\u7528\u7684\u529f\u80fd\u5417\u7684\u652f\u6301\u3002\u5176\u6b21\u5728\u89e3\u6790\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u8981\u5b9e\u73b0\u5bf9\u5e94\u5404\u79cd\u529f\u80fd\u7801\u7684\u64cd\u4f5c\u3002\u5177\u4f53\u67b6\u6784\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091752703.png)\n\n**1****\u3001\u547d\u4ee4\u89e3\u6790**\n\n\u670d\u52a1\u5668\u4f5c\u4e3a\u88ab\u52a8\u7aef\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u540e\uff0c\u5b89\u88c5\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u3002\u6240\u4ee5\u670d\u52a1\u5668\u63a5\u6536\u5230\u4fe1\u606f\u540e\u9996\u5148\u5bf9\u5176\u8fdb\u884c\u89e3\u6790\uff0c\u8fd9\u91cc\u6211\u4eec\u53ea\u9700\u8981\u4e00\u4e2a\u89e3\u6790\u51fd\u6570\u5c31\u53ef\u4ee5\u5b8c\u6210\uff0c\u5f53\u5728\u5177\u4f53\u5e94\u7528\u4e2d\u65f6\u53ea\u8981\u5c06\u63a5\u6536\u5230\u7684\u4fe1\u606f\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u89e3\u6790\u5c31\u53ef\u4ee5\u4e86\u3002\n\n\/*\u89e3\u6790\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u8fd4\u56de\u54cd\u5e94\u547d\u4ee4\u7684\u957f\u5ea6*\/\n\nuint16_t ParsingClientAccessCommand(uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\u5176\u5b9e\u5bf9\u5916\u6765\u8bf4\u53ea\u6709\u8fd9\u4e00\u4e2a\u51fd\u6570\u65f6\u53ef\u89c1\u7684\u3002\u5f53\u6211\u4eec\u8981\u5f00\u53d1\u4e00\u4e2aTCP Server\u7684\u5e94\u7528\u65f6\uff0c\u5c31\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u3002\n\n**2****\u3001\u547d\u4ee4\u5904\u7406**\n\n\u547d\u4ee4\u89e3\u6790\u51fa\u6765\u4e86\u4e4b\u540e\uff0c\u6309\u4e0d\u540c\u7684\u529f\u80fd\u7801\u6765\u8fdb\u884c\u4e0d\u540c\u7684\u5904\u7406\uff0c\u6211\u4eec\u652f\u63018\u79cd\u529f\u80fd\u7801\uff0c\u6bcf\u79cd\u529f\u80fd\u5417\u90fd\u5bf9\u5e94\u5904\u7406\u90e8\u5206\uff0c\u5f88\u591a\u65f6\u5019\u5927\u5bb6\u90fd\u4f1a\u5728\u89e3\u6790\u7684\u65f6\u5019\u6839\u636e\u89e3\u6790\u7ed3\u679c\u5904\u7406\uff0c\u8fd9\u52bf\u5fc5\u9700\u8981\u4e00\u4e2a\u5f88\u5927\u7684\u89e3\u6790\u51fd\u6570\u3002\u4e3a\u4e86\u7b80\u5316\u64cd\u4f5c\uff0c\u6211\u4eec\u5c06\u6bcf\u4e2a\u529f\u80fd\u7801\u5bf9\u5e94\u7684\u5904\u7406\u90e8\u5206\u90fd\u5c01\u88c5\u4e3a\u4e00\u4e2a\u51fd\u6570\u3002\u7136\u540e\u4f7f\u7528\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u52a8\u6001\u8c03\u7528\u8fd9\u4e9b\u51fd\u6570\uff0c\u4ece\u800c\u7b80\u5316\u8fd9\u4e9b\u51fd\u6570\u3002\n\n\u9996\u5148\u6211\u4eec\u9700\u89818\u4e2a\u5904\u7406\u5bf9\u5e94\u4e2a\u529f\u80fd\u7801\u64cd\u4f5c\u7684\u51fd\u6570\uff1a\n\n\/*\u5904\u7406\u8bfb\u7ebf\u5708\u72b6\u6001\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadCoilStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u8bfb\u8f93\u5165\u72b6\u6001\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadInputStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadHoldingRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadInputRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u5355\u4e2a\u7ebf\u5708\u547d\u4ee4*\/\n\nstatic uint16_t HandleWriteSingleCoilCommand(uint16_t coilAddress,uint16_t coilValue,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u547d\u4ee4*\/\n\nstatic uint16_t HandleWriteSingleRegisterCommand(uint16_t registerAddress,uint16_t registerValue,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u591a\u4e2a\u7ebf\u5708\u72b6\u6001*\/\n\nstatic uint16_t HandleWriteMultipleCoilCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u72b6\u6001*\/\n\nstatic uint16_t HandleWriteMultipleRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\u7136\u540e\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u8c03\u7528\u8fd9\u4e0b\u51fd\u6570\uff1a\n\nuint16_t (*HandleClientCommand[])(uint16_t,uint16_t,uint8_t *,uint8_t *)={HandleReadCoilStatusCommand,\n\n                                                                          HandleReadInputStatusCommand,\n\n                                                                          HandleReadHoldingRegisterCommand,\n\n                                                                          HandleReadInputRegisterCommand,\n\n                                                                          HandleWriteSingleCoilCommand,\n\n                                                                          HandleWriteSingleRegisterCommand,\n\n                                                                          HandleWriteMultipleCoilCommand,\n\n                                                                          HandleWriteMultipleRegisterCommand};\n\n**3****\u3001\u54cd\u5e94\u7684\u751f\u6210**\n\n\u5bf9\u4e8e\u54cd\u5e94\u547d\u4ee4\u7684\u751f\u6210\u5176\u5b9e\u5728\u7b2c\u4e8c\u7bc7\u4e2d\u5df2\u7ecf\u8bf4\u8fc7\u4e86\uff0c\u9700\u8981\u8bf4\u660e\u7684\u662f\u5404\u79cd\u5199\u6570\u636e\u7684\u5177\u4f53\u6570\u503c\u4ee5\u53ca\u83b7\u5f97\u8bfb\u6570\u636e\u7684\u5404\u79cd\u5177\u4f53\u6570\u503c\u6211\u4eec\u5c06\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\u53bb\u5b9e\u73b0\uff0c\u56e0\u4e3a\u8fd9\u90e8\u5206TCP\u548cRTU\u662f\u76f8\u540c\u7684\uff0c\u6211\u4eec\u5c06\u5728\u540e\u7eed\u7684\u7bc7\u7ae0\u4e2d\u8bf4\u660e\u3002\n\n\u8fd9\u4e00\u6b21\u6211\u4eec\u5c01\u88c5Modbus TCP Client\u5e94\u7528\u3002\u540c\u6837\u7684\u6211\u4eec\u4e5f\u4e0d\u662f\u505a\u5177\u4f53\u7684\u5e94\u7528\uff0c\u800c\u662f\u5b9e\u73b0TCP\u5ba2\u6237\u7aef\u7684\u57fa\u672c\u529f\u80fd\u3002\u6211\u4eec\u5c06TCP\u5ba2\u6237\u7aef\u7684\u529f\u80fd\u5c01\u88c5\u4e3a\u51fd\u6570\uff0c\u4ee5\u4fbf\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u65f6\u8c03\u7528\u3002\n\n\u5bf9\u4e8eTCP\u5ba2\u6237\u7aef\u6211\u4eec\u4e3b\u8981\u5b9e\u73b0\u7684\u529f\u80fd\u6709\u4e24\u4e2a\uff1a\u5176\u4e00\u662f\u751f\u6210\u8bbf\u95eeTCP\u670d\u52a1\u5668\u7684\u547d\u4ee4\uff0c\u603b\u5171\u652f\u63018\u4e2d\u529f\u80fd\u7801\u3002\u5176\u4e8c\u662f\u5bf9TCP\u670d\u52a1\u5668\u7aef\u8fd4\u56de\u7684\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\u5e76\u6839\u636e\u7ed3\u679c\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u540c\u6837\u4e5f\u662f\u652f\u63018\u4e2d\u529f\u80fd\u5417\u7684\u64cd\u4f5c\u3002\u5177\u4f53\u8f6f\u4ef6\u8bbf\u95ee\u7ed3\u6784\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091824268.png)\n\n**1****\u3001\u8bbf\u95ee\u547d\u4ee4\u7684\u751f\u6210**\n\n\u5ba2\u6237\u7aef\u4f5c\u4e3a\u4e3b\u52a8\u4ea4\u4e92\u7aef\uff0c\u9700\u8981\u5411\u670d\u52a1\u5668\u53d1\u5404\u79cd\u64cd\u4f5c\u8bf7\u6c42\u547d\u4ee4\u3002\u6240\u4ee5\u5bf9\u4e8eTCP\u5ba2\u6237\u7aef\u6765\u8bf4\uff0c\u9996\u5148\u8981\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002\u751f\u6210\u547d\u4ee4\u53ea\u9700\u8981\u6309\u6807\u51c6\u7684\u534f\u8bae\u683c\u5f0f\u6765\u751f\u6210\u5373\u53ef\uff0c\u76ee\u524d\u6211\u4eec\u53ea\u652f\u6301\u524d\u9762\u63d0\u5230\u76848\u4e2a\u529f\u80fd\u7801\u3002\n\n\/*\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4*\/\n\nuint16_t CreateAccessServerCommand(ObjAccessInfo objInfo,void *dataList,uint8_t *commandBytes)\n\n\u8fd9\u6837\u5728\u5f00\u53d1\u5177\u4f53\u7684\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\u53ea\u9700\u8981\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u5c31\u53ef\u4ee5\u4e86\u3002\n\n**2****\u3001\u54cd\u5e94\u4fe1\u606f\u7684\u89e3\u6790**\n\n\u5982\u524d\u4e00\u8282\u6240\u8ff0\uff0c\u670d\u52a1\u5668\u6536\u5230\u547d\u4ee4\u540e\uff0c\u6839\u636e\u547d\u4ee4\u8fdb\u884c\u5904\u7406\u5e76\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u63a5\u5230\u547d\u4ee4\u540e\u9996\u5148\u8981\u5bf9\u54cd\u5e94\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u7684\u8fc7\u7a0b\u5176\u5b9e\u4e0e\u670d\u52a1\u5668\u7aef\u662f\u4e00\u81f4\u7684\u3002\u6240\u4e0d\u540c\u7684\u662f\uff0c\u4e0d\u9700\u8981\u518d\u6839\u636e\u89e3\u6790\u7ed3\u679c\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u4e86\u3002\n\n\/*\u89e3\u6790\u6536\u5230\u7684\u670d\u52a1\u5668\u76f8\u5e94\u4fe1\u606f*\/\n\nvoid ParsingServerRespondMessage(uint8_t *recievedMessage)\n\n\u8fd9\u6837\u5728\u5f00\u53d1\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\uff0c\u6211\u4eec\u8c03\u7528\u8fd9\u4e00\u51fd\u6570\u6765\u89e3\u6790\u54cd\u5e94\u4fe1\u606f\u5c31\u53ef\u4ee5\u4e86\u3002\n\n**3****\u3001\u54cd\u5e94\u5904\u7406**\n\n\u5bf9\u4e8e\u89e3\u6790\u51fa\u6765\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u60c5\u51b5\u5b9e\u73b0\u64cd\u4f5c\uff0c\u6bd4\u5982\u4fee\u6539\u53d8\u91cf\u7684\u503c\u7b49\uff0c\u5e94\u4e3a\u4e3b\u8981\u652f\u6301\u7684\u64cd\u4f5c\u7801\u662f8\u4e2a\uff0c\u7406\u8bba\u4e0a\u5bf9\u5e94\u7684\u6bcf\u79cd\u529f\u80fd\u7801\u90fd\u4f1a\u6709\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u7531\u4e8e\u5199\u64cd\u4f5c\u547d\u4ee4\u5df2\u7ecf\u4e0d\u9700\u8981\u505a\u4efb\u4f55\u64cd\u4f5c\u4e86\uff0c\u6240\u4ee5\u5bf9\u5e94\u7684\u64cd\u4f5c\u5b9e\u9645\u4e0a\u53ea\u6709\u8bfb\u64cd\u4f5c\u76844\u79cd\u529f\u80fd\u7801\u3002\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u7ebf\u5708\u72b6\u6001\u4f4d0x01\u529f\u80fd\u7801*\/\n\nstatic void HandleReadCoilStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u72b6\u6001\u4f4d0x02\u529f\u80fd\u7801*\/\n\nstatic void HandleReadInputStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u4fdd\u6301\u5bc4\u5b58\u56680x03\u529f\u80fd\u7801\uff09*\/\n\nstatic void HandleReadHoldingRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u5bc4\u5b58\u56680x04\u529f\u80fd\u7801*\/\n\nstatic void HandleReadInputRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\u540c\u6837\u7684\uff0c\u6211\u4eec\u4e5f\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u5b9e\u73b0\u8fd9\u4e9b\u51fd\u6570\u7684\u8c03\u7528\uff1a\n\nvoid (*HandleServerRespond[])(uint8_t *,uint16_t,uint16_t)={HandleReadCoilStatusRespond, HandleReadInputStatusRespond, HandleReadHoldingRegisterRespond, HandleReadInputRegisterRespond};\n\n\u5982\u6b64\uff0cTCP\u5ba2\u6237\u7aef\u7684\u5c01\u88c5\u5c31\u5b8c\u6210\u4e86\uff0c\u5f53\u7136\u5177\u4f53\u7684\u6570\u636e\u5904\u7406\u90e8\u5206\u9700\u8981\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u662f\u624d\u80fd\u786e\u5b9a\u3002\n\nModbus\u5728\u4e32\u884c\u94fe\u8def\u4e0a\u5206\u4e3aSlave\u548cMaster\uff0c\u8fd9\u4e00\u8282\u6211\u4eec\u5c31\u6765\u5f00\u53d1Slave\u3002\u5bf9\u4e8eModbus RTU\u4ece\u7ad9\u6765\u8bf4\uff0c\u9700\u8981\u5b9e\u73b0\u7684\u529f\u80fd\u5176\u5b9e\u4e0eModbus TCP\u7684\u670d\u52a1\u5668\u7aef\u662f\u4e00\u6837\u7684\u3002\u5176\u64cd\u4f5c\u8fc7\u7a0b\u4e5f\u662f\u4e00\u6837\u7684\u3002\u9996\u5148\u63a5\u6536\u5230\u4e3b\u7ad9\u7684\u8bbf\u95ee\u547d\u4ee4\uff0c\u5bf9\u8be5\u547d\u4ee4\u62a5\u6587\u8fdb\u884c\u89e3\u6790\uff0c\u8fd9\u91cc\u6211\u4eec\u4e5f\u53ea\u662f\u5b9e\u73b0\u524d\u9762\u63d0\u5230\u76848\u79cd\u529f\u80fd\u7801\u3002\u5176\u6b21\u6211\u4eec\u6839\u636e\u89e3\u6790\u7684\u7ed3\u679c\u8fdb\u884c\u5bf9\u5e94\u7684\u64cd\u4f5c\uff0c\u5177\u4f53\u7684\u8f6f\u4ef6\u8bbf\u95ee\u7ed3\u6784\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091851606.png)\n\n\u4ece\u4e0a\u56fe\u4e2d\u4e0d\u96be\u53d1\u73b0\u5b9e\u9645\u662f3\u6b65\uff1a\n\n\u7b2c1\u6b65\u3001\u63a5\u5230\u547d\u4ee4\u540e\u5148\u89e3\u6790\u3002\u89e3\u6790\u7684\u65b9\u5f0f\u4e0e\u524d\u9762\u51e0\u8282\u4e2d\u7684\u7c7b\u5f0f\u3002\n\n\u7b2c2\u6b65\u3001\u6839\u636e\u89e3\u6790\u7ed3\u679c\u8fdb\u884c\u64cd\u4f5c\u3002\u5305\u62ec\u66f4\u5177\u547d\u4ee4\u4fee\u6539\u6216\u8005\u83b7\u53d6\u53d8\u91cf\u7684\u503c\u3002\n\n\u7b2c3\u6b65\u3001\u751f\u6210\u54cd\u5e94\u5e76\u8fd4\u56de\u7ed9\u4e3b\u673a\u3002\n\n**1****\u3001\u89e3\u6790\u4e3b\u673a\u547d\u4ee4**\n\n\u4ece\u673a\u5728\u63a5\u6536\u5230\u4e3b\u673a\u7684\u547d\u4ee4\u62a5\u6587\u540e\uff0c\u5bf9\u5176\u8fdb\u884c\u89e3\u6790\uff0c\u6211\u4eec\u6682\u4e14\u652f\u6301\u4e0a\u56fe\u6240\u793a\u76848\u79cd\u529f\u80fd\u7801\u3002\n\n\/*\u89e3\u6790\u63a5\u6536\u5230\u7684\u4fe1\u606f\uff0c\u5e76\u8fd4\u56de\u5408\u6210\u7684\u56de\u590d\u4fe1\u606f\u548c\u4fe1\u606f\u7684\u5b57\u8282\u957f\u5ea6\uff0c\u901a\u8fc7\u56de\u8c03\u51fd\u6570*\/\n\nuint16_t ParsingMasterAccessCommand(uint8_t *receivedMessage,uint8_t *respondBytes,uint16_t rxLength)\n\n\u8be5\u51fd\u6570\u63a5\u6536\u63a5\u53d7\u5230\u7684\u62a5\u6587\uff0c\u5e76\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u62a5\u6587\uff0c\u8fd4\u56de\u503c\u662f\u54cd\u5e94\u62a5\u6587\u7684\u957f\u5ea6\u3002\u5728\u5f00\u53d1\u5e94\u7528\u662f\u5c06\u63a5\u6536\u5230\u7684\u62a5\u6587\u53d1\u9001\u4e2a\u8be5\u51fd\u6570\uff0c\u5e76\u5c06\u751f\u6210\u7684\u54cd\u5e94\u4fe1\u606f\u8fd4\u56de\u4e2a\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u4e86\u3002\n\n**2****\u3001\u7ed3\u679c\u64cd\u4f5c**\n\n\u89e3\u6790\u4e4b\u540e\u65e0\u8bba\u662f\u8bfb\u547d\u4ee4\u8fd8\u662f\u5199\u547d\u4ee4\u90fd\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002\u6211\u4eec\u6839\u636e\u4e0d\u540c\u7684\u529f\u80fd\u7801\u5c01\u88c5\u4e0d\u540c\u7684\u64cd\u4f5c:\n\n\/*\u5904\u7406\u8bfb\u7ebf\u5708\u72b6\u6001\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadCoilStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u8bfb\u8f93\u5165\u72b6\u6001\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadInputStatusCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadHoldingRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668\u547d\u4ee4*\/\n\nstatic uint16_t HandleReadInputRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u5355\u4e2a\u7ebf\u5708\u547d\u4ee4*\/\n\nstatic uint16_t HandleWriteSingleCoilCommand(uint16_t coilAddress,uint16_t coilValue,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u5355\u4e2a\u5bc4\u5b58\u5668\u547d\u4ee4*\/\n\nstatic uint16_t HandleWriteSingleRegisterCommand(uint16_t registerAddress,uint16_t registerValue,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u591a\u4e2a\u7ebf\u5708\u72b6\u6001*\/\n\nstatic uint16_t HandleWriteMultipleCoilCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\/*\u5904\u7406\u5199\u591a\u4e2a\u5bc4\u5b58\u5668\u72b6\u6001*\/\n\nstatic uint16_t HandleWriteMultipleRegisterCommand(uint16_t startAddress,uint16_t quantity,uint8_t *receivedMessage,uint8_t *respondBytes)\n\n\u540c\u6837\u6211\u4eec\u4e5f\u662f\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u5b9e\u73b0\u8fd98\u4e2a\u51fd\u6570\u7684\u8c03\u7528\uff1a\n\nuint16_t (*HandleMasterCommand[])(uint16_t,uint16_t,uint8_t *,uint8_t *)={HandleReadCoilStatusCommand,\n\n                                                                          HandleReadInputStatusCommand,\n\n                                                                          HandleReadHoldingRegisterCommand,\n\n                                                                          HandleReadInputRegisterCommand,\n\n                                                                          HandleWriteSingleCoilCommand,\n\n                                                                          HandleWriteSingleRegisterCommand,\n\n                                                                          HandleWriteMultipleCoilCommand,\n\n                                                                          HandleWriteMultipleRegisterCommand};\n\n**3****\u3001\u751f\u6210\u4ece\u673a\u54cd\u5e94**\n\n\u5904\u7406\u5b8c\u8fd8\u9700\u8981\u751f\u6210\u4ece\u673a\u7684\u76f8\u5e94\u4fe1\u606f\uff0c\u65e0\u8bba\u662f\u8bfb\u64cd\u4f5c\u547d\u4ee4\u8fd8\u662f\u5199\u64cd\u4f5c\u547d\u4ee4\uff0c\u6211\u4eec\u5747\u5728\u5bf9\u5e94\u7684\u529f\u80fd\u7801\u5904\u7406\u65f6\u751f\u6210\u54cd\u5e94\u62a5\u6587\u3002\u8fd9\u4e48\u4e00\u6765\u5728\u5f00\u53d1\u5e94\u7528\u65f6\uff0c\u53ea\u9700\u8981\u8c03\u7528\u89e3\u6790\u51fd\u6570\u636e\u53ef\u4ee5\u5b9e\u73b0\u5168\u90e8\u7684\u529f\u80fd\u4e86\u3002\n\n\u8fd9\u4e00\u8282\u6211\u4eec\u6765\u5c01\u88c5\u6700\u540e\u4e00\u79cd\u5e94\u7528\uff08Modbus RTU Master\u5e94\u7528\uff09\uff0cRTU\u4e3b\u7ad9\u7684\u5f00\u53d1\u4e0eTCP\u5ba2\u6237\u7aef\u7684\u5f00\u53d1\u662f\u4e00\u81f4\u7684\u3002\u540c\u6837\u7684\u6211\u4eec\u4e5f\u4e0d\u662f\u505a\u5177\u4f53\u7684\u5e94\u7528\uff0c\u800c\u662f\u5b9e\u73b0RTU\u4e3b\u7ad9\u7684\u57fa\u672c\u529f\u80fd\u3002\u6211\u4eec\u5c06RTU\u4e3b\u7ad9\u7684\u529f\u80fd\u5c01\u88c5\u4e3a\u51fd\u6570\uff0c\u4ee5\u4fbf\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u65f6\u8c03\u7528\u3002\n\n\u5bf9\u4e8eRTU\u4e3b\u7ad9\u6211\u4eec\u4e3b\u8981\u5b9e\u73b0\u7684\u529f\u80fd\u6709\u4e24\u4e2a\uff1a\u5176\u4e00\u662f\u751f\u6210\u8bbf\u95eeRTU\u4ece\u7ad9\u7684\u547d\u4ee4\uff0c\u603b\u5171\u652f\u63018\u4e2d\u529f\u80fd\u7801\u3002\u5176\u4e8c\u662f\u5bf9RTU\u4ece\u7ad9\u7aef\u8fd4\u56de\u7684\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\u5e76\u6839\u636e\u7ed3\u679c\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u540c\u6837\u4e5f\u662f\u652f\u63018\u4e2d\u529f\u80fd\u5417\u7684\u64cd\u4f5c\u3002\u5177\u4f53\u8f6f\u4ef6\u8bbf\u95ee\u7ed3\u6784\u5982\u4e0b\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425091930369.png)\n\n**1****\u3001\u8bbf\u95ee\u547d\u4ee4\u7684\u751f\u6210**\n\n\u5ba2\u6237\u7aef\u4f5c\u4e3a\u4e3b\u52a8\u4ea4\u4e92\u7aef\uff0c\u9700\u8981\u5411\u670d\u52a1\u5668\u53d1\u5404\u79cd\u64cd\u4f5c\u8bf7\u6c42\u547d\u4ee4\u3002\u6240\u4ee5\u5bf9\u4e8eRTU\u4e3b\u7ad9\u6765\u8bf4\uff0c\u9996\u5148\u8981\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002\u751f\u6210\u547d\u4ee4\u53ea\u9700\u8981\u6309\u6807\u51c6\u7684\u534f\u8bae\u683c\u5f0f\u6765\u751f\u6210\u5373\u53ef\uff0c\u76ee\u524d\u6211\u4eec\u53ea\u652f\u6301\u524d\u9762\u63d0\u5230\u76848\u4e2a\u529f\u80fd\u7801\u3002\n\n\/*\u751f\u6210\u8bbf\u95ee\u4ece\u7ad9\u7684\u547d\u4ee4*\/\n\nuint16_t CreateAccessSlaveCommand(ObjAccessInfo objInfo,void *dataList,uint8_t *commandBytes)\n\n\u8fd9\u6837\u5728\u5f00\u53d1\u5177\u4f53\u7684\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\u53ea\u9700\u8981\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u751f\u6210\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u547d\u4ee4\u5c31\u53ef\u4ee5\u4e86\u3002\n\n**2****\u3001\u54cd\u5e94\u4fe1\u606f\u7684\u89e3\u6790**\n\n\u5982\u524d\u4e00\u8282\u6240\u8ff0\uff0c\u670d\u52a1\u5668\u6536\u5230\u547d\u4ee4\u540e\uff0c\u6839\u636e\u547d\u4ee4\u8fdb\u884c\u5904\u7406\u5e76\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u63a5\u5230\u547d\u4ee4\u540e\u9996\u5148\u8981\u5bf9\u54cd\u5e94\u4fe1\u606f\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u7684\u8fc7\u7a0b\u5176\u5b9e\u4e0e\u670d\u52a1\u5668\u7aef\u662f\u4e00\u81f4\u7684\u3002\u6240\u4e0d\u540c\u7684\u662f\uff0c\u4e0d\u9700\u8981\u518d\u6839\u636e\u89e3\u6790\u7ed3\u679c\u751f\u6210\u54cd\u5e94\u4fe1\u606f\u4e86\u3002\n\n\/*\u89e3\u6790\u6536\u5230\u7684\u4ece\u7ad9\u76f8\u5e94\u4fe1\u606f*\/\n\nvoid ParsingSlaveRespondMessage(uint8_t *recievedMessage)\n\n\u8fd9\u6837\u5728\u5f00\u53d1\u5ba2\u6237\u7aef\u5e94\u7528\u65f6\uff0c\u6211\u4eec\u8c03\u7528\u8fd9\u4e00\u51fd\u6570\u6765\u89e3\u6790\u54cd\u5e94\u4fe1\u606f\u5c31\u53ef\u4ee5\u4e86\u3002\n\n**3****\u3001\u54cd\u5e94\u5904\u7406**\n\n\u5bf9\u4e8e\u89e3\u6790\u51fa\u6765\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u60c5\u51b5\u5b9e\u73b0\u64cd\u4f5c\uff0c\u6bd4\u5982\u4fee\u6539\u53d8\u91cf\u7684\u503c\u7b49\uff0c\u5e94\u4e3a\u4e3b\u8981\u652f\u6301\u7684\u64cd\u4f5c\u7801\u662f8\u4e2a\uff0c\u7406\u8bba\u4e0a\u5bf9\u5e94\u7684\u6bcf\u79cd\u529f\u80fd\u7801\u90fd\u4f1a\u6709\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u7531\u4e8e\u5199\u64cd\u4f5c\u547d\u4ee4\u5df2\u7ecf\u4e0d\u9700\u8981\u505a\u4efb\u4f55\u64cd\u4f5c\u4e86\uff0c\u6240\u4ee5\u5bf9\u5e94\u7684\u64cd\u4f5c\u5b9e\u9645\u4e0a\u53ea\u6709\u8bfb\u64cd\u4f5c\u76844\u79cd\u529f\u80fd\u7801\u3002\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u7ebf\u5708\u72b6\u6001\u4f4d0x01\u529f\u80fd\u7801*\/\n\nstatic void HandleReadCoilStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u72b6\u6001\u91cf\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u72b6\u6001\u4f4d0x02\u529f\u80fd\u7801*\/\n\nstatic void HandleReadInputStatusRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u4fdd\u6301\u5bc4\u5b58\u56680x03\u529f\u80fd\u7801\uff09*\/\n\nstatic void HandleReadHoldingRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\/*\u5904\u7406\u8bfb\u4ece\u7ad9\u5bc4\u5b58\u5668\u503c\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u8bfb\u8f93\u5165\u5bc4\u5b58\u56680x04\u529f\u80fd\u7801*\/\n\nstatic void HandleReadInputRegisterRespond(uint8_t *receivedMessage,uint16_t startAddress,uint16_t quantity)\n\n\u540c\u6837\u7684\uff0c\u6211\u4eec\u4e5f\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6765\u5b9e\u73b0\u8fd9\u4e9b\u51fd\u6570\u7684\u8c03\u7528\uff1a\n\nvoid (*HandleServerRespond[])(uint8_t *,uint16_t,uint16_t)={HandleReadCoilStatusRespond, HandleReadInputStatusRespond, HandleReadHoldingRegisterRespond, HandleReadInputRegisterRespond};\n\n\u5230\u8fd9\u91cc\uff0cRTU\u4e3b\u7ad9\u7684\u5c01\u88c5\u5c31\u5b8c\u6210\u4e86\uff0c\u5f53\u7136\u5177\u4f53\u7684\u6570\u636e\u5904\u7406\u90e8\u5206\u9700\u8981\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u662f\u624d\u80fd\u786e\u5b9a\u3002\n\n\u524d\u9762\u5f00\u53d1\u4e86\u5404\u79cd\u5e94\u7528\uff0c\u4f46\u662f\u5374\u4e00\u76f4\u6ca1\u6709\u63d0\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u4f60\u5c31\u662f\u5bf9\u5177\u4f53\u7684\u6570\u636e\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u5bf9\u4e8eModbus\u6765\u8bf4\u6807\u51c6\u7684\u6570\u636e\u67094\u79cd\uff1a\u7ebf\u5708\u6570\u636e\uff08\u5730\u5740\uff1a0000x\uff09\u3001\u8f93\u5165\u72b6\u6001\u91cf\u6570\u636e\uff08\u5730\u5740\uff1a1000x\uff09\u3001\u4fdd\u6301\u5bc4\u5b58\u5668\u6570\u636e\uff08\u5730\u5740\uff1a4000x\uff09\u548c\u8f93\u5165\u5bc4\u5b58\u5668\u6570\u636e\uff08\u5730\u5740\uff1a3000x\uff09\u3002\u6211\u4eec\u901a\u8baf\u7684\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u5bf9\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\uff0c\u53ef\u662f\u6211\u4eec\u524d\u9762\u7684\u5c01\u88c5\u4e2d\u5e76\u6ca1\u6709\u63d0\u5230\u6570\u636e\u5904\u7406\u3002\u4e8b\u5b9e\u4e0a\uff0c\u4e5f\u6ca1\u529e\u6cd5\u8003\u8651\u8fd9\u4e00\u70b9\uff0c\u56e0\u4e3a\u5177\u4f53\u7684\u5e94\u7528\u6570\u636e\u5343\u5dee\u4e07\u522b\uff0c\u662f\u6ca1\u529e\u6cd5\u5c01\u88c5\u7684\u3002\u90a3\u6211\u4eec\u600e\u4e48\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u5462\uff1f\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u89e3\u51b3\u8fd9\u4e00\u7c7b\u95ee\u9898\u3002\n\n**1****\u3001\u6570\u636e\u5904\u7406\u51fd\u6570\u7684\u5c01\u88c5**\n\n\u6211\u4eec\u8003\u8651\u5230\uff0c\u4e0d\u8bba\u662f\u5728RTU\u4e3b\u7ad9\u3001RTU\u4ece\u7ad9\u3001TCP\u5ba2\u6237\u7aef\u3001\u8fd8\u662f\u5728TCP\u670d\u52a1\u5668\u5bf9\u6570\u636e\u7684\u5904\u7406\u672c\u8d28\u4e0a\u662f\u4e00\u6837\u7684\uff0c\u53ea\u8981\u5177\u4f53\u5e94\u7528\u7684\u6570\u636e\u7ed3\u6784\u786e\u5b9a\u540e\u5904\u7406\u65b9\u6cd5\u4e5f\u5c31\u786e\u5b9a\u4e86\u3002\u9274\u4e8e\u6b64\uff0c\u6211\u4eec\u91c7\u7528\u7684\u65b9\u6cd5\u662f\u5b9a\u4e49\u5f31\u5316\u7c7b\u578b\u7684\u51fd\u6570\u3002\u5982\u4e0b\uff1a\n\n\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684Coil\u91cf\u7684\u503c*\/\n\n__weak void GetCoilStatus(uint16_t startAddress,uint16_t quantity,bool *statusList)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684InputStatus\u91cf\u7684\u503c*\/\n\n__weak void GetInputStatus(uint16_t startAddress,uint16_t quantity,bool *statusValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c*\/\n\n__weak void GetHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u503c*\/\n\n__weak void GetInputRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u8bbe\u7f6e\u5355\u4e2a\u7ebf\u5708\u7684\u503c*\/\n\n__weak void SetSingleCoil(uint16_t coilAddress,bool coilValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u8bbe\u7f6e\u5355\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/\n\n__weak void SetSingleRegister(uint16_t registerAddress,uint16_t registerValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u8bbe\u7f6e\u591a\u4e2a\u7ebf\u5708\u7684\u503c*\/\n\n__weak void SetMultipleCoil(uint16_t startAddress,uint16_t quantity,bool *statusValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/\n\n__weak void SetMultipleRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)\n\n{\n\n  \/\/\u5982\u679c\u9700\u8981Modbus TCP Server\/RTU Slave\u5e94\u7528\u4e2d\u5b9e\u73b0\u5177\u4f53\u5185\u5bb9\n\n}\n\n\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u7ebf\u5708\u72b6\u6001*\/\n\n__weak void UpdateCoilStatus(uint16_t startAddress,uint16_t quantity,bool *stateValue)\n\n{\n\n  \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0\n\n}\n\n\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u8f93\u5165\u72b6\u6001\u503c*\/\n\n__weak void UpdateInputStatus(uint16_t startAddress,uint16_t quantity,bool *stateValue)\n\n{\n\n  \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0\n\n}\n\n\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u7ebf\u5708\u72b6\u6001*\/\n\n__weak void UpdateHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)\n\n{\n\n  \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0\n\n}\n\n\/*\u66f4\u65b0\u8bfb\u56de\u6765\u7684\u7ebf\u5708\u72b6\u6001*\/\n\n__weak void UpdateInputResgister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue)\n\n{\n\n  \/\/\u5728\u5ba2\u6237\u7aef\uff08\u4e3b\u7ad9\uff09\u5e94\u7528\u4e2d\u5b9e\u73b0\n\n}\n\n\u5728\u5f00\u53d1\u5177\u4f53\u5e94\u7528\u65f6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5728\u5e94\u7528\u4e2d\u5b9e\u73b0\u5bf9\u5e94\u7684\u51fd\u6570\u5c31\u53ef\u4ee5\u4f7f\u529f\u80fd\u5b8c\u6574\uff0c\u81f3\u4e8e\u5177\u4f53\u7684\u6570\u636e\u5982\u4f55\u5904\u7406\uff0c\u5c31\u8981\u770b\u5177\u4f53\u5e94\u7528\u4e2d\u7684\u6570\u636e\u683c\u5f0f\u4e86\u3002\u5f53\u7136\u8fd9\u4e9b\u51fd\u6570\u5e76\u975e\u90fd\u9700\u8981\u5b9e\u73b0\uff0c\u53ea\u9700\u8981\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u5b9e\u73b0\u5c31\u53ef\u4ee5\u4e86\u3002\n\n**2****\u3001\u5173\u4e8e\u5927\u5c0f\u7aef\u7684\u95ee\u9898**\n\n\u63d0\u5230\u6570\u636e\u901a\u8baf\uff0c\u6709\u4e00\u4e2a\u95ee\u9898\u662f\u6ca1\u6709\u529e\u6cd5\u56de\u907f\u7684\uff0c\u90a3\u5c31\u662f\u5927\u5c0f\u7aef\u7684\u95ee\u9898\u3002\u5bf9\u4e8eModbus\u534f\u8bae\u6765\u8bf4\uff0c\u91c7\u7528\u7684\u662f\u5927\u7aef\u6a21\u5f0f\uff0c\u5c31\u662f\u4f4e\u4f4d\u5730\u5740\u5b58\u9ad8\u4f4d\u5b57\u8282\u6570\u636e\uff0c\u9ad8\u4f4d\u5730\u5740\u5b58\u4f4e\u4f4d\u5b57\u8282\u6570\u636e\u3002\n\n\u5728\u8fdb\u884c\u591a\u5b57\u8282\u6570\u636e\u901a\u8baf\u65f6\uff0c\u5927\u5c0f\u7aef\u7684\u95ee\u9898\u5c31\u660e\u663e\u4e86\uff0c\u6bd4\u5982\u4e00\u4e2a\u6d6e\u70b9\u6570\u5728\u4e0d\u540c\u7684\u7cfb\u7edf\u4e2d\u5b58\u50a8\u7684\u987a\u5e8f\u662f\u6709\u5dee\u522b\u7684\uff0c\u4f60\u8bfb\u4e0a\u6765\u6216\u8005\u5199\u4e0b\u53bb\u7684\u6570\u636e\u5c31\u4f1a\u51fa\u73b0\u9519\u8bef\u7684\u89e3\u6790\u3002\u6240\u4ee5\u6211\u4eec\u5728\u5904\u7406\u6570\u636e\u62a5\u6587\u65f6\u662f\u5fc5\u987b\u8003\u8651\u8fd9\u4e00\u70b9\u7684\u3002\n\n\u8c08\u5230Modbus\u901a\u8baf\u81ea\u7136\u514d\u4e0d\u4e86\u5faa\u73af\u5197\u4f59\u6821\u9a8c\uff08CRC\uff09\uff0c\u7279\u522b\u662f\u5728\u6807\u51c6\u7684\u4e32\u884cRTU\u94fe\u8def\u4e0a\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u4e0d\u4ec5\u5982\u6b64\u5728\u5176\u4ed6\u5f00\u53d1\u4e2d\uff0c\u4e5f\u7ecf\u5e38\u8981\u7528\u5230CRC [\u7b97\u6cd5](http:\/\/lib.csdn.net\/base\/datastructure)\u5bf9\u5404\u79cd\u6570\u636e\u8fdb\u884c\u6821\u9a8c\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u6211\u4eec\u5c31\u9700\u8981\u7814\u7a76\u4e00\u4e0b\u8fd9\u4e2a\u5faa\u73af\u5197\u4f59\u6821\u9a8c\uff08CRC\uff09\u7b97\u6cd5\u3002\n\n**1****\u3001****CRC****\u7b80\u8ff0**\n\n      \u5faa\u73af\u5197\u4f59\u68c0\u67e5\uff08CRC\uff09\u662f\u4e00\u79cd\u6570\u636e\u4f20\u8f93\u68c0\u9519\u529f\u80fd\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u591a\u9879\u5f0f\u8ba1\u7b97\uff0c\u5e76\u5c06\u5f97\u5230\u7684\u7ed3\u679c\u9644\u5728\u5e27\u7684\u540e\u9762\uff0c\u63a5\u6536\u8bbe\u5907\u4e5f\u6267\u884c\u7c7b\u4f3c\u7684\u7b97\u6cd5\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u6b63\u786e\u6027\u548c\u5b8c\u6574\u6027\u3002\n\nCRC\u6821\u9a8c\u7684\u57fa\u672c\u601d\u60f3\u662f\u5229\u7528\u7ebf\u6027\u7f16\u7801\u7406\u8bba\uff0c\u5728\u53d1\u9001\u7aef\u6839\u636e\u8981\u4f20\u9001\u7684k\u4f4d\u4e8c\u8fdb\u5236\u7801\u5e8f\u5217\uff0c\u4ee5\u4e00\u5b9a\u7684\u89c4\u5219\u4ea7\u751f\u4e00\u4e2a\u6821\u9a8c\u7528\u7684\u76d1\u7763\u7801\uff08\u65e2CRC\u7801\uff09r\u4f4d\uff0c\u5e76\u9644\u5728\u4fe1\u606f\u540e\u8fb9\uff0c\u6784\u6210\u4e00\u4e2a\u65b0\u7684\u4e8c\u8fdb\u5236\u7801\u5e8f\u5217\u6570\u5171(k+r)\u4f4d\uff0c\u6700\u540e\u53d1\u9001\u51fa\u53bb\u3002\u5728\u63a5\u6536\u7aef\uff0c\u5219\u6839\u636e\u4fe1\u606f\u7801\u548cCRC\u7801\u4e4b\u95f4\u6240\u9075\u5faa\u7684\u89c4\u5219\u8fdb\u884c\u68c0\u9a8c\uff0c\u4ee5\u786e\u5b9a\u4f20\u9001\u4e2d\u662f\u5426\u51fa\u9519\u3002\n\nCRC\u7684\u672c\u8d28\u662f\u6a212\u9664\u6cd5\u7684\u4f59\u6570\uff0c\u91c7\u7528\u7684\u9664\u6570\u4e0d\u540c\uff0cCRC\u7684\u7c7b\u578b\u4e5f\u5c31\u4e0d\u4e00\u6837\u3002\u901a\u5e38\uff0cCRC\u7684\u9664\u6570\u7528\u751f\u6210\u591a\u9879\u5f0f\u6765\u8868\u793a\u3002\u6700\u5e38\u7528\u7684CRC\u7801\u7684\u751f\u6210\u591a\u9879\u5f0f\u6709\u4e0b\u9762\u51e0\u79cd\uff1a\n\n![](https:\/\/image.modbus.cn\/wp-content\/uploads\/2024\/04\/20240425092022539.png)\n\n      \u4e0d\u4e00\u6837\u7684\u751f\u6210\u591a\u9879\u5f0f\uff0c\u6240\u4ee5\u5f97\u5230\u7684\u7ed3\u679c\u81ea\u7136\u4e5f\u662f\u4e0d\u4e00\u6837\u7684\u3002\u4e8b\u5b9e\u4e0a\u5728Modbus\u901a\u8baf\u4e2d\u91c7\u7528\u7684\u662fCRC-16\u7684\u65b9\u5f0f\u3002\n\n**2****\u3001\u7b97\u6cd5\u5206\u6790**\n\n      CRC\u6821\u9a8c\u7801\u7684\u7f16\u7801\u65b9\u6cd5\u662f\u7528\u5f85\u53d1\u9001\u7684\u4e8c\u8fdb\u5236\u6570\u636et\uff08x\uff09\u9664\u4ee5\u751f\u6210\u591a\u9879\u5f0fg\uff08x\uff09\uff0c\u5c06\u6700\u540e\u7684\u4f59\u6570\u4f5c\u4e3aCRC\u6821\u9a8c\u7801\u3002\u5176\u5b9e\u73b0\u6b65\u9aa4\u5982\u4e0b\uff1a\n\n      \u8bbe\u5f85\u53d1\u9001\u7684\u6570\u636e\u5757\u662fm\u4f4d\u7684\u4e8c\u8fdb\u5236\u591a\u9879\u5f0ft\uff08x\uff09\uff0c\u751f\u6210\u591a\u9879\u5f0f\u4e3ar\u9636\u7684g\uff08x\uff09\u3002\u5728\u6570\u636e\u5757\u7684\u672b\u5c3e\u6dfb\u52a0r\u4e2a0\uff0c\u6570\u636e\u5757\u7684\u957f\u5ea6\u589e\u52a0\u5230m+r\u4f4d\uff0c\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u591a\u9879\u5f0f\u4e3a \u3002\u7528\u751f\u6210\u591a\u9879\u5f0fg\uff08x\uff09\u53bb\u9664 \uff0c\u6c42\u5f97\u4f59\u6570\u4e3a\u9636\u6570\u4e3ar-1\u7684\u4e8c\u8fdb\u5236\u591a\u9879\u5f0fy\uff08x\uff09\u3002\u6b64\u4e8c\u8fdb\u5236\u591a\u9879\u5f0fy\uff08x\uff09\u5c31\u662ft\uff08x\uff09\u7ecf\u8fc7\u751f\u6210\u591a\u9879\u5f0fg\uff08x\uff09\u7f16\u7801\u7684CRC\u6821\u9a8c\u7801\u3002\u7528 \u4ee5\u6a212\u7684\u65b9\u5f0f\u51cf\u53bby\uff08x\uff09\uff0c\u5f97\u5230\u4e8c\u8fdb\u5236\u591a\u9879\u5f0f \u3002 \u5c31\u662f\u5305\u542b\u4e86CRC\u6821\u9a8c\u7801\u7684\u5f85\u53d1\u9001\u5b57\u7b26\u4e32\u3002\n\n      \u4eceCRC\u7684\u7f16\u7801\u89c4\u5219\u53ef\u4ee5\u770b\u51fa\uff0cCRC\u7f16\u7801\u5b9e\u9645\u4e0a\u662f\u5c06\u4ee3\u53d1\u9001\u7684m\u4f4d\u4e8c\u8fdb\u5236\u591a\u9879\u5f0ft\uff08x\uff09\u8f6c\u6362\u6210\u4e86\u53ef\u4ee5\u88abg\uff08x\uff09\u9664\u5c3d\u7684m+r\u4f4d\u4e8c\u8fdb\u5236\u591a\u9879\u5f0f\uff0c\u6240\u4ee5\u89e3\u7801\u65f6\u53ef\u4ee5\u7528\u63a5\u6536\u5230\u7684\u6570\u636e\u53bb\u9664g\uff08x\uff09\uff0c\u5982\u679c\u4f59\u6570\u4f4d\u96f6\uff0c\u5219\u8868\u793a\u4f20\u8f93\u8fc7\u7a0b\u6ca1\u6709\u9519\u8bef\uff1b\u5982\u679c\u4f59\u6570\u4e0d\u4e3a\u96f6\uff0c\u5219\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u80af\u5b9a\u5b58\u5728\u9519\u8bef\u3002\u8bb8\u591aCRC\u7684\u786c\u4ef6\u89e3\u7801\u7535\u8def\u5c31\u662f\u6309\u8fd9\u79cd\u65b9\u5f0f\u8fdb\u884c\u68c0\u9519\u7684\u3002\u540c\u65f6\u53ef\u4ee5\u770b\u4f5c\u662f\u7531t\uff08x\uff09\u548cCRC\u6821\u9a8c\u7801\u7684\u7ec4\u5408\uff0c\u6240\u4ee5\u89e3\u7801\u65f6\u5c06\u63a5\u6536\u5230\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u53bb\u6389\u5c3e\u90e8\u7684r\u4f4d\u6570\u636e\uff0c\u5f97\u5230\u7684\u5c31\u662f\u539f\u59cb\u6570\u636e\u3002\n\n      \u5b9e\u9645\u4e0a\uff0c\u771f\u6b63\u7684CRC \u8ba1\u7b97\u901a\u5e38\u4e0e\u4e0a\u9762\u63cf\u8ff0\u7684\u8fd8\u6709\u4e9b\u4e0d\u540c\u3002\u8fd9\u662f\u56e0\u4e3a\u8fd9\u79cd\u6700\u57fa\u672c\u7684CRC\u9664\u6cd5\u5b58\u5728\u4e00\u4e2a\u5f88\u660e\u663e\u7684\u7f3a\u9677\uff0c\u5c31\u662f\u6570\u636e\u6d41\u7684\u5f00\u5934\u6dfb\u52a0\u4e00\u4e9b0\u5e76\u4e0d\u5f71\u54cd\u6700\u540e\u6821\u9a8c\u7684\u7ed3\u679c\u3002\u4e3a\u4e86\u5f25\u8865\u8fd9\u4e00\u7f3a\u9677\u6240\u4ee5\u5f15\u5165\u4e86\u4e24\u4e2a\u6982\u5ff5\uff1a\u4e00\u4e2a\u662f\u201c\u4f59\u6570\u521d\u59cb\u503c\u201d\uff0c\u53e6\u4e00\u4e2a\u662f\u201c\u7ed3\u679c\u5f02\u6216\u503c\u201d\u3002\u6240\u8c13 \u201c\u4f59\u6570\u521d\u59cb\u503c\u201d\u5c31\u662f\u5728\u8ba1\u7b97CRC\u503c\u524d\uff0c\u4e3a\u5b58\u50a8\u53d8\u91cf\u6240\u8d4b\u7684\u521d\u503c\u3002\u5bf9\u5e94\u7684\u201c\u7ed3\u679c\u5f02\u6216\u503c\u201d\u5c31\u662f\u5728\u8ba1\u7b97\u5b8c\u6210\u540e\uff0c\u5c06\u53d8\u91cf\u503c\u4e0e\u8fd9\u4e2a\u503c\u4f5c\u6700\u540e\u7684\u5f02\u6216\u8fd0\u7b97\u800c\u5f97\u5230\u6821\u9a8c\u7ed3\u679c\u3002\n\n**\u540d\u79f0**\u6821\u9a8c\u548c\u4f4d\u5bbd\u751f\u6210\u591a\u9879\u5f0f\u9664\u6570\uff08\u591a\u9879\u5f0f\uff09\u4f59\u6570\u521d\u59cb\u503c\u7ed3\u679c\u5f02\u6216\u503cCRC-44x4+x+13  CRC-88x8+x5+x4+10x31  CRC-88x8+x2+x1+10x07  CRC-88x8+x6+x4+x3+x2+x10x5E  CRC-1212x12+x11+x3+x+180F  **CRC-16 ****16****x16+x15+x2+1****0x8005****0x0000****0x0000**CRC-CCITT16x16+x12+x5+10x10210xFFFF0x0000CRC-3232x32+x26+x23+x22+x16+x12+x11+x10+x8+x7+x5+x4+x2+x1+10x04C11DB70xFFFFFFFF0xFFFFFFFFCRC-32c32x32+x28+x27+...+x8+x6+11EDC6F41  \n\n      \u8bf4\u5230\u8fd9\u91cc\u6211\u4eec\u5df2\u7ecf\u53ef\u4ee5\u63cf\u8ff0\u4e00\u4e0b\u8fd9\u4e2a\u7b97\u6cd5\u7684\u5b9e\u73b0\u8fc7\u7a0b\uff1a\n\n\u7b2c1\u6b65\uff1a\u5b9a\u4e49CRC\u5b58\u50a8\u53d8\u91cf\uff0c\u5e76\u7ed9\u5176\u8d4b\u503c\u4e3a\u201c\u4f59\u6570\u521d\u59cb\u503c\u201d\u3002\n\n\u7b2c2\u6b65\uff1a\u5c06\u6570\u636e\u7684\u7b2c\u4e00\u4e2a8-bit\u5b57\u7b26\u4e0eCRC\u5b58\u50a8\u53d8\u91cf\u8fdb\u884c\u5f02\u6216\uff0c\u5e76\u628a\u7ed3\u679c\u5b58\u5165CRC\u5b58\u50a8\u53d8\u91cf\u3002\n\n\u7b2c3\u6b65\uff1aCRC\u5b58\u50a8\u53d8\u91cf\u5411\u53f3\u79fb\u4e00\u4f4d\uff0cMSB\u8865\u96f6\uff0c\u79fb\u51fa\u5e76\u68c0\u67e5LSB\u3002\n\n\u7b2c4\u6b65\uff1a\u5982\u679cLSB\u4e3a0\uff0c\u91cd\u590d\u7b2c\u4e09\u6b65\uff1b\u82e5LSB\u4e3a1\uff0cCRC\u5bc4\u5b58\u5668\u4e0e0x31\u76f8\u5f02\u6216\u3002\n\n\u7b2c5\u6b65\uff1a\u91cd\u590d\u7b2c3\u4e0e\u7b2c4\u6b65\u76f4\u52308\u6b21\u79fb\u4f4d\u5168\u90e8\u5b8c\u6210\u3002\u6b64\u65f6\u4e00\u4e2a8-bit\u6570\u636e\u5904\u7406\u5b8c\u6bd5\u3002\n\n\u7b2c6\u6b65\uff1a\u91cd\u590d\u7b2c2\u81f3\u7b2c5\u6b65\u76f4\u5230\u6240\u6709\u6570\u636e\u5168\u90e8\u5904\u7406\u5b8c\u6210\u3002\n\n\u7b2c7\u6b65\uff1a\u6700\u7ec8CRC\u5b58\u50a8\u53d8\u91cf\u7684\u5185\u5bb9\u4e0e\u201c\u7ed3\u679c\u5f02\u6216\u503c\u201d\u8fdb\u884c\u6216\u975e\u64cd\u4f5c\u540e\u5373\u4e3aCRC\u503c\u3002\n\n**3****\u3001\u4ee3\u7801\u5b9e\u73b0**\n\n      \u6709\u4e86\u524d\u9762\u7684\u51c6\u5907\u5b9e\u9645\u4e0a\u6211\u4eec\u8981\u5b9e\u73b0CRC\u6821\u9a8c\u7684\u4ee3\u7801\u5df2\u7ecf\u5f88\u7b80\u5355\u4e86\uff0c\u5b9e\u73b0\u8fd9\u4e00\u8fc7\u7a0b\u6709\u5404\u79cd\u65b9\u6cd5\u6211\u4eec\u8bf4\u5e38\u7528\u76842\u79cd\uff1a\u4e00\u662f\u76f4\u63a5\u8ba1\u7b97\u6cd5\uff0c\u5c31\u662f\u6309\u7167\u524d\u9762\u7684\u6b65\u9aa4\u8ba1\u7b97\u51fa\u6765\uff1b\u4e8c\u662f\u9a71\u52a8\u8868\u6cd5\uff0c\u5c31\u662f\u5c06\u4e00\u4e9b\u6570\u636e\u50a8\u5b58\u8d77\u6765\u76f4\u63a5\u83b7\u53d6\u8ba1\u7b97\u3002\u56e0\u4e3a\u5728Modbus\u4e2d\u4f7f\u7528\u7684\u662fCRC-16\uff0c\u6240\u4ee5\u6211\u4eec\u4e00\u6b21\u4e3a\u4f8b\u6765\u5b9e\u73b0\u5b83\u3002\n\n\uff081\uff09\u76f4\u63a5\u8ba1\u7b97\u6cd5\n\n\u76f4\u63a5\u8ba1\u7b97\u6cd5\u7b80\u5355\u76f4\u63a5\uff0c\u4fbf\u5199\u7a0b\u5e8f\u4e5f\u6bd4\u8f83\u7b80\u5355\uff0c\u6211\u4eec\u4ee5CRC-16\u4e3a\u4f8b\uff0c\u5176\u591a\u9879\u5f0f\u8bb0\u4e3a0x8005\uff0c\u56e0\u4e3a\u5176\u8bb0\u8fc7\u5f02\u6216\u503c\u4e3a0x0000\uff0c\u6240\u4ee5\u53ef\u4ee5\u4e0d\u6dfb\u52a0\u3002\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a\n\n#define Initial_Value    0x0000\n\n#define EOR 0x0000\n\n#define POLY16 0x8005\n\nuint16_t CRC16(uint8_t *buf,uint16_t length)\n\n{\n\n  uint16_t crc16,data,val;\n\n  crc16 = Initial_Value;\n\n  for(int i=0;i<length;i++)\n\n  {\n\n    if((i % 8) == 0)\n\n    {\n\n      data = (*buf++)<<8;\n\n     }\n\n    val = crc16 ^ data;\n\n    crc16 = crc16<<1;\n\n    data = data <<1;\n\n    if(val&0x8000)\n\n    {\n\n      crc16 = crc16 ^ POLY16;\n\n    }\n\n  }\n\n  return crc16;\n\n}\n\n\uff082\uff09\u9a71\u52a8\u8868\u6cd5\n\n     \u5bf9\u4e8e\u76f4\u63a5\u8ba1\u7b97\u6cd5\uff0c\u867d\u7136\u7b80\u5355\u76f4\u63a5\uff0c\u4f46\u6709\u65f6\u5019\u6548\u7387\u5374\u662f\u4e2a\u95ee\u9898\uff0c\u6240\u4ee5\u5728Modbus\u901a\u8baf\u4e2d\u6211\u4eec\u901a\u5e38\u91c7\u7528\u9a71\u52a8\u8868\u6cd5\u6765\u5b9e\u73b0\uff1a\n\n\/\/CRC_16\u9ad88\u4f4d\u6570\u636e\u533a\n\nconst uint8_t auchCRCHi[] = {\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,\n\n0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,\n\n0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,\n\n0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,\n\n0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,\n\n0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,\n\n0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,\n\n0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,\n\n0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,\n\n0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,\n\n0x80, 0x41, 0x00, 0xC1, 0x81, 0x40\n\n};\n\n\/\/CRC\u4f4e\u4f4d\u5b57\u8282\u503c\u8868\n\nconst uint8_t auchCRCLo[] = {\/\/CRC_16\u4f4e8\u4f4d\u6570\u636e\u533a\n\n0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,\n\n0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,\n\n0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,\n\n0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,\n\n0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,\n\n0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,\n\n0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,\n\n0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,\n\n0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,\n\n0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,\n\n0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,\n\n0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,\n\n0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,\n\n0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,\n\n0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,\n\n0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,\n\n0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,\n\n0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,\n\n0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,\n\n0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,\n\n0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,\n\n0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,\n\n0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,\n\n0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,\n\n0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,\n\n0x43, 0x83, 0x41, 0x81, 0x80, 0x40\n\n};\n\n\/*\u51fd\u6570\u529f\u80fd\uff1aCRC\u6821\u9a8c\u7801\u751f\u6210\n\n  \u8f93\u5165\u53c2\u6570\uff1apuchMsgg\u662f\u8981\u8fdb\u884cCRC\u6821\u9a8c\u7684\u6d88\u606f\uff0cusDataLen\u662f\u6d88\u606f\u4e2d\u5b57\u8282\u6570\n\n  \u51fd\u6570\u8f93\u51fa\uff1a\u8ba1\u7b97\u51fa\u6765\u7684CRC\u6821\u9a8c\u7801\n\n  GenerateCRC16CheckCode\u67e5\u8868\u8ba1\u7b97\u51fd\u6570*\/\n\nstatic uint16_t GenerateCRC16CheckCode(uint8_t *puckMsg,uint8_t usDataLen)\n\n{\n\n  uint8_t uchCRCHi = 0xFF ; \/\/\u9ad8CRC\u5b57\u8282\u521d\u59cb\u5316\n\n  uint8_t uchCRCLo = 0xFF ; \/\/\u4f4eCRC \u5b57\u8282\u521d\u59cb\u5316\n\n  uint32_t  uIndex ; \/\/CRC\u5faa\u73af\u4e2d\u7684\u7d22\u5f15\n\n  \/\/\u4f20\u8f93\u6d88\u606f\u7f13\u51b2\u533a\n\n  while (usDataLen--)\n\n  {\n\n    \/\/\u8ba1\u7b97CRC\n\n    uIndex = uchCRCLo ^ *puckMsg++ ; \n\n    uchCRCLo = uchCRCHi ^ auchCRCHi[uIndex] ;\n\n    uchCRCHi = auchCRCLo[uIndex] ;\n\n  }\n\n  \/\/\u8fd4\u56de\u7ed3\u679c\uff0c\u9ad8\u4f4d\u5728\u524d\n\n  return (uchCRCLo << 8 |uchCRCHi) ;\n\n}\n\n**4****\u3001\u7ed3\u675f\u8bed**\n\n      CRC\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u7279\u522b\u662f\u5728\u505a\u901a\u8baf\u65f6\u66f4\u662f\u7ecf\u5e38\u89c1\u5230\uff0c\u6240\u4ee5\u638c\u63e1\u5b83\u662f\u975e\u5e38\u6709\u5fc5\u8981\u7684\uff0c\u81f3\u5c11\u4f1a\u4f7f\u7528\u5b83\u3002\u6211\u4eec\u5728\u5f00\u53d1Modbus\u5e93\u51fd\u6570\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5bf9\u5b83\u4e5f\u4e0d\u8fc7\u662f\u6709\u4e86\u4e00\u4e9b\u6bd4\u8f83\u7c97\u6d45\u7684\u7406\u89e3\uff0c\u5728\u6b64\u8bb0\u8ff0\u4ee5\u6c42\u5171\u8fdb\u3002\n\n\u524d\u9762\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86Modbus\u534f\u8bae\u6808\u7684\u5f00\u53d1\uff0c\u4f46\u8fd9\u4e0d\u662f\u6211\u4eec\u7684\u76ee\u7684\u3002\u6211\u4eec\u5f00\u53d1\u5b83\u7684\u76ee\u7684\u5f53\u7136\u662f\u8981\u4f7f\u7528\u5b83\u6765\u89e3\u51b3\u6211\u4eec\u7684\u5b9e\u9645\u95ee\u9898\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u4f7f\u7528\u521a\u5f00\u53d1\u7684Modbus\u534f\u8bae\u6808\u5f00\u53d1\u4e00\u4e2aModbus TCP Server\u5e94\u7528\u3002\n\n\u5f00\u53d1Modbus TCP Server\u9996\u5148\u9700\u8981\u6709TCP Server\u7684\u652f\u6301\u4ee5\u53ca\u7f51\u7edc\u7684\u914d\u7f6e\u7b49\uff0c\u4f46\u8fd9\u4e9b\u4e0eModbus\u672c\u8eab\u6ca1\u6709\u4ec0\u4e48\u5173\u7cfb\uff0c\u6211\u4eec\u518d\u6b21\u4e0d\u4f5c\u8ba8\u8bba\u3002\u6211\u4eec\u89c4\u5b9a\u7f51\u7edc\u548cTCP Server\u5df2\u7ecf\u914d\u7f6e\u59a5\u5f53\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u8ba8\u8bbaModbus TCP Server\u7684\u5b9e\u73b0\u8fc7\u7a0b\u3002\n\n\u6839\u636e\u524d\u9762\u5bf9\u534f\u8bae\u6808\u7684\u5c01\u88c5\uff0c\u6211\u4eec\u9700\u8981\u5f15\u7528Modbus TCP Server\u7684\u76f8\u5173\u5c01\u88c5\u3002\u5728\u63a5\u6536\u5230\u547d\u4ee4\u540e\u8c03\u7528\u89e3\u6790\u51fd\u6570\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u51fd\u6570\u7684\u539f\u578b\uff1a\n\nuint16_t ParsingClientAccessCommand(uint8_t *receivedMessage,uint8_t *respondBytes);\n\n\u8be5\u51fd\u6570\u4f5c\u4e3a\u51fd\u6570\u6307\u9488\u4f20\u9012\u7ed9TCP Server\uff0c\u5e76\u56de\u8c03\u89e3\u6790\u63a5\u6536\u5230\u7684\u4fe1\u606f\u5217\u8868\u3002\n\n\u9664\u6b64\u4e4b\u5916\uff0c\u6211\u4eec\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u8981\u5b9e\u73b08\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u4ee5\u5b8c\u6210\u771f\u6b63\u7684\u5bf9Modbus\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u8fd98\u4e2a\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b\uff1a\n\n\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684Coil\u91cf\u7684\u503c*\/\n\nvoid GetCoilStatus(uint16_t startAddress,uint16_t quantity,bool *statusList);\n\n \/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684InputStatus\u91cf\u7684\u503c*\/\n\nvoid GetInputStatus(uint16_t startAddress,uint16_t quantity,bool *statusValue);\n\n \/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid GetHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);\n\n \/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid GetInputRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);\n\n \/*\u8bbe\u7f6e\u5355\u4e2a\u7ebf\u5708\u7684\u503c*\/\n\nvoid SetSingleCoil(uint16_t coilAddress,bool coilValue);\n\n \/*\u8bbe\u7f6e\u5355\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid SetSingleRegister(uint16_t registerAddress,uint16_t registerValue);\n\n \/*\u8bbe\u7f6e\u591a\u4e2a\u7ebf\u5708\u7684\u503c*\/\n\nvoid SetMultipleCoil(uint16_t startAddress,uint16_t quantity,bool *statusValue);\n\n \/*\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid SetMultipleRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);\n\n\u8fd98\u4e2a\u51fd\u6570\u6839\u636e\u5e94\u7528\u7684\u5177\u4f53\u9700\u6c42\u6765\u5b9e\u73b0\u6570\u636e\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u5b9e\u73b0\u51e0\u4e2a\u5982\u4f55\u5b9e\u73b0\u6839\u636e\u5404\u81ea\u7684\u5e94\u7528\u9700\u6c42\u548c\u6570\u636e\u7ed3\u6784\u6765\u786e\u5b9a\u3002\n\n\u4e0a\u4e00\u8282\u6211\u4eec\u4f7f\u7528\u534f\u8bae\u5360\u5f00\u53d1\u4e86\u4e00\u4e2aModbus TCP Server\u5e94\u7528\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4f7f\u7528\u534f\u8bae\u6808\u5728\u5f00\u53d1\u4e00\u4e2a\u57fa\u4e8e\u4e32\u884c\u94fe\u8def\u7684Mosbus RTU Slave\u5e94\u7528\u3002\n\n\u6839\u636e\u524d\u9762\u5bf9\u534f\u8bae\u6808\u7684\u5c01\u88c5\uff0c\u6211\u4eec\u9700\u8981\u5f15\u7528Modbus TCP Server\u7684\u76f8\u5173\u5c01\u88c5\u3002\u5728\u63a5\u6536\u5230\u547d\u4ee4\u540e\u8c03\u7528\u89e3\u6790\u51fd\u6570\u8fdb\u884c\u89e3\u6790\uff0c\u89e3\u6790\u51fd\u6570\u7684\u539f\u578b\uff1a\n\nParsingMasterAccessCommand(uint8_t *receivedMesasage,uint8_t *respondBytes,uint16_t rxLength);\n\nRTU Slave\u4f7f\u7528\u4e32\u53e3\u4e2d\u65ad\u63a5\u6536\u4fe1\u606f\uff0c\u63a5\u6536\u5230\u4fe1\u606f\u540e\u4f7f\u7528\u4e0a\u8ff0\u51fd\u6570\u89e3\u6790\u4fe1\u606f\uff0c\u6839\u636e\u63a5\u6536\u7684\u4fe1\u606f\u547d\u4ee4\u5b8c\u6210\u64cd\u4f5c\u3002\n\n\u5f53\u7136\uff0c\u9664\u4e86\u8c03\u7528\u89e3\u6790\u51fd\u6570\u5916\uff0c\u6211\u4eec\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u8981\u5b9e\u73b08\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u4ee5\u5b8c\u6210\u771f\u6b63\u7684\u5bf9Modbus\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u8fd98\u4e2a\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b\uff1a\n\n\/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684Coil\u91cf\u7684\u503c*\/\n\nvoid GetCoilStatus(uint16_t startAddress,uint16_t quantity,bool *statusList);\n\n \/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684InputStatus\u91cf\u7684\u503c*\/\n\nvoid GetInputStatus(uint16_t startAddress,uint16_t quantity,bool *statusValue);\n\n \/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid GetHoldingRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);\n\n \/*\u83b7\u53d6\u60f3\u8981\u8bfb\u53d6\u7684\u8f93\u5165\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid GetInputRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);\n\n \/*\u8bbe\u7f6e\u5355\u4e2a\u7ebf\u5708\u7684\u503c*\/\n\nvoid SetSingleCoil(uint16_t coilAddress,bool coilValue);\n\n \/*\u8bbe\u7f6e\u5355\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid SetSingleRegister(uint16_t registerAddress,uint16_t registerValue);\n\n \/*\u8bbe\u7f6e\u591a\u4e2a\u7ebf\u5708\u7684\u503c*\/\n\nvoid SetMultipleCoil(uint16_t startAddress,uint16_t quantity,bool *statusValue);\n\n \/*\u8bbe\u7f6e\u591a\u4e2a\u5bc4\u5b58\u5668\u7684\u503c*\/\n\nvoid SetMultipleRegister(uint16_t startAddress,uint16_t quantity,uint16_t *registerValue);\n\n\u8fd98\u4e2a\u51fd\u6570\u6839\u636e\u5e94\u7528\u7684\u5177\u4f53\u9700\u6c42\u6765\u5b9e\u73b0\u6570\u636e\u5bf9\u8c61\u7684\u64cd\u4f5c\uff0c\u5b9e\u73b0\u51e0\u4e2a\u5982\u4f55\u5b9e\u73b0\u6839\u636e\u5404\u81ea\u7684\u5e94\u7528\u9700\u6c42\u548c\u6570\u636e\u7ed3\u6784\u6765\u786e\u5b9a\u3002\n\n\u5f53\u7136\uff0c\u5e76\u975e\u5fc5\u987b\u4f7f\u7528\u4e2d\u65ad\u63a5\u6536\u4fe1\u606f\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u67e5\u8be2\u7b49\u65b9\u5f0f\uff0c\u4f46\u662f\u4f7f\u7528\u4e2d\u65ad\u662f\u4e00\u4e2a\u6bd4\u8f83\u597d\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u4e3b\u7ad9\u547d\u4ee4\u7684\u53d1\u9001\u4e00\u822c\u5e76\u65e0\u89c4\u5f8b\uff0c\u4e2d\u65ad\u65b9\u5f0f\u65e2\u53ef\u4fdd\u8bc1\u4fe1\u606f\u53ca\u65f6\u54cd\u5e94\uff0c\u4e5f\u65e0\u987b\u8017\u8d39\u592a\u591a\u7684\u4ece\u7ad9\u8d44\u6e90\uff0c\u800c\u6709\u66f4\u591a\u8d44\u6e90\u53bb\u5904\u7406\u5176\u4ed6\u7684\u4efb\u52a1\u3002\n\n---\n*modbus.cn*\n"